[From his timeline, he has yet to run into her and see what they'd done... but he is aware that she'd been taken, the last time they'd communicated. He won't bring it up until he's talked with her more to see when she's from.]

Sometimes it's physical- we might transform into other people, animals, you name it. Other times, our mental states are altered... For instance, once we were made to believe we'd lived our entire lives here, with no memories from home. There are alterations to the environment sometimes too, in fact this whole enclosure can be dramatically transformed.

It's a unique power called "shifting."

...and sometimes they abduct us from the village for a more... personalized visit.

[He grimaces. Scully was in their hands for that, not too long ago.]